v1.0.0-rc.7 release

[arya2]

Versioning

How to Increment Versions

Zebra follows semantic versioning. Semantic versions look like: MAJOR.MINOR.PATCH[-TAG.PRE-RELEASE]

The draft zebrad changelog will have an automatic version bump. This version is based on the labels on the PRs in the release.

Check that the automatic zebrad version increment is correct:

If we're releasing a mainnet network upgrade, it is a major release:

1. Increment the major version of all the Zebra crates.
2. Increment the patch version of the tower crates.

If we're not releasing a mainnet network upgrade, check for features, major changes, deprecations, and removals. If this release has any, it is a minor release:

1. Increment the minor version of zebrad.
2. Increment the pre-release version of the other crates.
3. Increment the patch version of the tower crates.

Otherwise, it is a patch release:

1. Increment the patch version of zebrad.
2. Increment the pre-release version of the other crates.
3. Increment the patch version of the tower crates.

Zebra's Rust API is not stable or supported, so we keep all the crates on the same beta pre-release version.

Version Locations

Once you know which versions you want to increment, you can find them in the:

zebrad (rc):

• zebrad Cargo.toml
• zebra-network protocol user agent: https://github.com/ZcashFoundation/zebra/blob/main/zebra-network/src/constants.rs
• README.md
• book/src/user/docker.md

crates (beta):

• zebra-* Cargo.tomls

tower (patch):

• tower-* Cargo.tomls

auto-generated:

• Cargo.lock: run cargo build after updating all the Cargo.tomls

Version Tooling

You can use fastmod to interactively find and replace versions.

For example, you can do something like:

fastmod --extensions rs,toml,md --fixed-strings '1.0.0-rc.0' '1.0.0-rc.1' zebrad README.md zebra-network/src/constants.rs book/src/user/docker.md
fastmod --extensions rs,toml,md --fixed-strings '1.0.0-beta.15' '1.0.0-beta.16' zebra-*
fastmod --extensions rs,toml,md --fixed-strings '0.2.30' '0.2.31' tower-batch tower-fallback
cargo build

If you use fastmod, don't update versions in CHANGELOG.md or zebra-dependencies-for-audit.md.

README

Update the README to:

• Remove any "Known Issues" that have been fixed
• Update the "Build and Run Instructions" with any new dependencies.
  Check for changes in the Dockerfile since the last tag: git diff <previous-release-tag> docker/Dockerfile.
• If Zebra has started using newer Rust language features or standard library APIs, update the known working Rust version in the README, book, and Cargo.tomls

You can use a command like:

      fastmod --fixed-strings '1.58' '1.65'

Checkpoints

With every release and for performance reasons, we want to update the Zebra checkpoints. More information on how to do this can be found in the zebra-checkpoints README.

To do this you will need a synchronized zcashd node. You can request help from other zebra team members to submit this PR if you can't make it yourself at the moment of the release.

Missed Dependency Updates

Sometimes dependabot misses some dependency updates, or we accidentally turned them off.

Here's how we make sure we got everything:

1. Run cargo update on the latest main branch, and keep the output
2. If needed, update deny.toml
3. Open a separate PR with the changes, including the output of cargo update

Change Log

Important: Any merge into main deletes any edits to the draft changelog.
Once you are ready to tag a release, copy the draft changelog into CHANGELOG.md.

We use the Release Drafter workflow to automatically create a draft changelog. We follow the Keep a Changelog format.

To create the final change log:

• Copy the latest draft changelog into CHANGELOG.md (there can be multiple draft releases)
• Delete any trivial changes. Keep the list of those, to include in the PR
• Combine duplicate changes
• Edit change descriptions so they are consistent, and make sense to non-developers
• Check the category for each change
  • Prefer the "Fix" category if you're not sure

Change Categories

From "Keep a Changelog":

• Added for new features.
• Changed for changes in existing functionality.
• Deprecated for soon-to-be removed features.
• Removed for now removed features.
• Fixed for any bug fixes.
• Security in case of vulnerabilities.

Create the Release

Create the Release PR

After you have the version increments, the updated checkpoints, any missed dependency updates,
and the updated changelog:

• Make sure the PRs with the new checkpoint hashes and missed dependencies are already merged
• Push the version increments and the updated changelog into a branch
  (for example: bump-v1.0.0-rc.0 - this needs to be different to the tag name)
• Create a release PR by adding &template=release-checklist.md to the comparing url (Example).
  • Add the list of deleted changelog entries as a comment to make reviewing easier.
• Freeze the batched queue using Mergify.
• Mark all the release PRs as Critical priority, so they go in the urgent Mergify queue.

Create the Release

• Once the PR has been merged, create a new release using the draft release as a base, by clicking the Edit icon in the draft release
• Set the tag name to the version tag,
  for example: v1.0.0-rc.0
• Set the release to target the main branch
• Set the release title to Zebra followed by the version tag,
  for example: Zebra 1.0.0-rc.0
• Replace the prepopulated draft changelog in the release description with the final changelog you created;
  starting just after the title ## [Zebra ... of the current version being released,
  and ending just before the title of the previous release.
• Mark the release as 'pre-release', until it has been built and tested
• Publish the pre-release to GitHub using "Publish Release"
• Delete all the draft releases from the list of releases

Binary Testing

• Wait until the Docker binaries have been built on main, and the quick tests have passed.
  (You can ignore the full sync and lightwalletd tests, because they take about a day to run.)
• Wait until the pre-release deployment machines have successfully launched
• Publish the release to GitHub by disabling 'pre-release', then clicking "Set as the latest release"
• Wait until the Docker images have been published
• Test the Docker image using docker run --tty --interactive zfnd/zebra:1.0.0-rc.<version>,
  and put the output in a comment on the PR
  
• Un-freeze the batched queue using Mergify.

Blog Post

If the release contains new features (major or minor), or high-priority bug fixes:

• Ask the team about doing a blog post

Release Failures

If building or running fails after tagging:

1. Fix the bug that caused the failure
2. Increment versions again, following these instructions from the start
3. Update the code and documentation with a new git tag
4. Update CHANGELOG.md with details about the fix
5. Tag a new release

[arya2]

Omitted:

• Create zebra-cli stub crate (#6484)
• docs(utilities): remove old comment (#6439)
• doc(net): Explain how we prioritise peer messages, and why it is secure (#6488)
• fix(net): Drop Firo cryptocurrency nodes from Zebra's address book, because they are not compatible with Zcash (#6398)
• fix(release): Add missing continuous deployment step to the release checklist (#6401)
• Revert "fix(net): Drop Firo cryptocurrency nodes from Zebra's address book, because they are not compatible with Zcash" (#6477)
• change(chain): Refactor the handling of height differences (#6330)
• change(deps): Update dependencies that only appear in the lock file (#6217)
• change(deps): Upgrade shared dependencies to match zcashd 5.5.0 (#6536)
• change(docs): Replaces XXX with TODO (#6417)
• feat(script): Add binary for finding references to closed issues (#6347)
• fix(devops): Use A-devops label for dependabot GitHub Actions PRs (#6508)
• fix(release): Add missing continuous deployment step to the release checklist (#6401)
• fix(release): Use Mergify queue freezes for releases (#6435)
• fix(script): updates search-issue-refs to group references by issue and output markdown (#6444)
• fix(script): updates search-issue-refs to print permalinks with the latest commit sha on main (#6494)
• fix(state): Remove an outdated anchor assertion in a comment (#6450)
• fix(ux): Disable issue URLs for a known shutdown panic in abscissa (#6486)
• refactor(ci): use GitHub variables for non-sensitive info (#6357)
• build(deps): bump actions/add-to-project from 0.4.1 to 0.5.0 (#6452)
• build(deps): bump actions/checkout from 3.4.0 to 3.5.0 (#6403)
• build(deps): bump actions/checkout from 3.5.0 to 3.5.1 (#6490)
• build(deps): bump actions/checkout from 3.5.1 to 3.5.2 (#6504)
• build(deps): bump actions/github-script from 6.4.0 to 6.4.1 (#6468)
• build(deps): bump baptiste0928/cargo-install from 1 to 2.0.0 (#6404)
• build(deps): bump bitflags from 2.0.2 to 2.1.0 (#6470)
• build(deps): bump codecov/codecov-action from 3.1.1 to 3.1.2 (#6492)
• build(deps): bump futures from 0.3.27 to 0.3.28 (#6442)
• build(deps): bump futures-core from 0.3.27 to 0.3.28 (#6441)
• build(deps): bump futures-util from 0.3.27 to 0.3.28 (#6443)
• build(deps): bump google-github-actions/auth from 1.0.0 to 1.1.0 (#6540)
• build(deps): bump h2 from 0.3.16 to 0.3.17 (#6505)
• build(deps): bump hyper from 0.14.25 to 0.14.26 (#6515)
• build(deps): bump indexmap from 1.9.2 to 1.9.3 (#6413)
• build(deps): bump peter-evans/dockerhub-description from 3.3.0 to 3.4.1 (#6476)
• build(deps): bump proptest from 0.10.1 to 1.1.0 (#6415)
• build(deps): bump prost from 0.11.8 to 0.11.9 (#6503)
• build(deps): bump regex from 1.7.2 to 1.7.3 (#6412)
• build(deps): bump reqwest from 0.11.15 to 0.11.16 (#6414)
• build(deps): bump reviewdog/action-actionlint from 1.36.0 to 1.37.0 (#6466)
• build(deps): bump serde from 1.0.158 to 1.0.159 (#6424)
• build(deps): bump serde from 1.0.159 to 1.0.160 (#6480)
• build(deps): bump serde_json from 1.0.94 to 1.0.95 (#6425)
• build(deps): bump serde_json from 1.0.95 to 1.0.96 (#6502)
• build(deps): bump serde_with from 2.3.1 to 2.3.2 (#6469)
• build(deps): bump shimataro/ssh-key-action from 2.5.0 to 2.5.1 (#6411)
• build(deps): bump tempfile from 3.4.0 to 3.5.0 (#6432)
• build(deps): bump tj-actions/changed-files from 35.7.11 to 35.7.12 (#6473)
• build(deps): bump tj-actions/changed-files from 35.7.12 to 35.8.0 (#6491)
• build(deps): bump tj-actions/changed-files from 35.7.2 to 35.7.6 (#6394)
• build(deps): bump tj-actions/changed-files from 35.7.6 to 35.7.8 (#6423)
• build(deps): bump tj-actions/changed-files from 35.7.8 to 35.7.11 (#6465)
• build(deps): bump tj-actions/changed-files from V35.7.8 to 35.7.8 (#6430)
• build(deps): bump tokio from 1.26.0 to 1.27.0 (#6426)
• build(deps): bump tonic from 0.8.3 to 0.9.1 (#6455)
• build(deps): bump tonic from 0.9.1 to 0.9.2 (#6527)
• build(deps): bump tonic-build from 0.8.4 to 0.9.1 (#6453)
• build(deps): bump tonic-build from 0.9.1 to 0.9.2 (#6525)
• build(deps): bump zcash_address from 0.2.0 to 0.2.1 (#6530)

[teor2345]

Looks good, the changelog edits aren't blockers.

Do you want to skip this step, so we can get the release out before Rust 1.69 goes stable?

Make sure the PRs with the new checkpoint hashes and missed dependencies are already merged

The Rust release should happen on Thursday 20 April (US time).

[arya2]

Do you want to skip this step, so we can get the release out before Rust 1.69 goes stable?

I'm okay skipping them but would prefer to update them if you're around later today (in a couple hours) for a re-approval.

[teor2345]

Do you want to skip this step, so we can get the release out before Rust 1.69 goes stable?

I'm okay skipping them but would prefer to update them if you're around later today (in a couple hours) for a re-approval.

I can check back in later today, but I'll only be around for the next 4 hours, because I started early this morning.

[arya2]

@Mergifyio update

[mergify]

update

✅ Branch has been successfully updated

[teor2345]

Thanks, looks good!

[codecov]

Codecov Report

Merging #6542 (d335c89) into main (f2133c9) will increase coverage by 0.16%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6542      +/-   ##
==========================================
+ Coverage   77.92%   78.09%   +0.16%     
==========================================
  Files         306      306              
  Lines       40236    40236              
==========================================
+ Hits        31355    31422      +67     
+ Misses       8881     8814      -67     

[arya2]

Test the Docker image using docker run --tty --interactive zfnd/zebra:1.0.0-rc.,
and put the output in a comment on the PR

Output:

➜ docker run --tty --interactive zfnd/zebra:1.0.0-rc.7
Unable to find image 'zfnd/zebra:1.0.0-rc.7' locally
1.0.0-rc.7: Pulling from zfnd/zebra
26c5c85e47da: Pull complete 
7d2eda9da1a8: Pull complete 
0c40b2a56142: Pull complete 
2bb8165b4c4d: Pull complete 
f4be1142cb95: Pull complete 
59bba4e60891: Pull complete 
Digest: sha256:30c536a65fae51dd919f61f53c0380ea57ea0f419285acd397783d53652fca69
Status: Downloaded newer image for zfnd/zebra:1.0.0-rc.7
[sentry] initialized disabled sentry client due to disabled or invalid DSN
2023-04-19T22:44:39.357452Z  INFO zebrad::components::tracing::component: started tracing component filter="info" TRACING_STATIC_MAX_LEVEL=LevelFilter::INFO LOG_STATIC_MAX_LEVEL=Info
2023-04-19T22:44:39.357528Z  INFO zebrad::components::tracing::component: installed sentry tracing layer
2023-04-19T22:44:39.357534Z  INFO zebrad::application: Diagnostic Metadata:
version: 1.0.0-rc.7
Zcash network: Mainnet
state version: 25
target triple: x86_64-unknown-linux-gnu
build profile: release
2023-04-19T22:44:39.357546Z  INFO zebrad::application: loaded zebrad config config_path=Some("/etc/zebra/zebrad.toml") config=ZebradConfig { consensus: Config { checkpoint_sync: true, debug_skip_parameter_preload: false }, metrics: Config { endpoint_addr: None }, network: Config { listen_addr: 127.0.0.1:8233, network: Mainnet, initial_mainnet_peers: {"dnsseed.z.cash:8233", "dnsseed.str4d.xyz:8233", "mainnet.seeder.zfnd.org:8233", "mainnet.is.yolo.money:8233"}, initial_testnet_peers: {"dnsseed.testnet.z.cash:18233", "testnet.seeder.zfnd.org:18233", "testnet.is.yolo.money:18233"}, peerset_initial_target_size: 25, crawl_new_peer_interval: 61s }, state: Config { cache_dir: "/zebrad-cache", ephemeral: false, debug_stop_at_height: None, delete_old_database: true }, tracing: Config { use_color: true, force_use_color: false, filter: None, buffer_limit: 128000, endpoint_addr: None, flamegraph: None, log_file: None, use_journald: false }, sync: Config { download_concurrency_limit: 50, checkpoint_verify_concurrency_limit: 1000, full_verify_concurrency_limit: 20, parallel_cpu_threads: 0 }, mempool: Config { tx_cost_limit: 80000000, eviction_memory_time: 3600s, debug_enable_at_height: None }, rpc: Config { listen_addr: None, parallel_cpu_threads: 0, debug_force_finished_sync: false } }

See more:

2023-04-19T22:44:39.357676Z  INFO {net="Main"}: zebrad::application: initialized rayon thread pool for CPU-bound tasks num_threads=12
2023-04-19T22:44:39.359886Z  INFO {net="Main"}: zebrad::commands::start: Starting zebrad
2023-04-19T22:44:39.359966Z  INFO {net="Main"}: zebrad::commands::start: initializing node state
2023-04-19T22:44:39.365884Z  INFO {net="Main"}: zebrad::commands::start: opening database, this may take a few minutes
2023-04-19T22:44:39.366373Z  INFO zebra_state::service::finalized_state::disk_db: the open file limit is high enough for Zebra current_limit=1048576 min_limit=512 ideal_limit=1024
2023-04-19T22:44:40.108414Z  INFO zebra_state::service::finalized_state::disk_db: Opened Zebra state cache at /zebrad-cache/state/v25/mainnet
2023-04-19T22:44:40.109027Z  INFO zebra_state::service::finalized_state: loaded Zebra state cache tip=None
2023-04-19T22:44:40.109188Z  INFO zebra_state::service: starting legacy chain check
2023-04-19T22:44:40.109212Z  INFO zebra_state::service: cached state consensus branch is valid: no legacy chain found
2023-04-19T22:44:40.109363Z  INFO {net="Main"}: zebrad::commands::start: initializing network
2023-04-19T22:44:40.109435Z  INFO {net="Main"}:open_listener{addr=127.0.0.1:8233}: zebra_network::peer_set::initialize: Trying to open Zcash protocol endpoint at 127.0.0.1:8233...
2023-04-19T22:44:40.109804Z  INFO {net="Main"}:open_listener{addr=127.0.0.1:8233}: zebra_network::peer_set::initialize: Opened Zcash protocol endpoint at 127.0.0.1:8233
2023-04-19T22:44:40.110092Z  INFO {net="Main"}: zebra_network::address_book_updater: starting the address book updater
2023-04-19T22:44:40.364404Z  INFO {net="Main"}:add_initial_peers: zebra_network::config: resolved seed peer IP addresses seed="dnsseed.z.cash:8233" remote_ip_count=50
2023-04-19T22:44:40.493545Z  INFO {net="Main"}:add_initial_peers: zebra_network::config: resolved seed peer IP addresses seed="dnsseed.str4d.xyz:8233" remote_ip_count=50
2023-04-19T22:44:40.548600Z  INFO {net="Main"}:add_initial_peers: zebra_network::config: resolved seed peer IP addresses seed="mainnet.seeder.zfnd.org:8233" remote_ip_count=50
2023-04-19T22:44:40.762369Z  INFO {net="Main"}:add_initial_peers: zebra_network::config: resolved seed peer IP addresses seed="mainnet.is.yolo.money:8233" remote_ip_count=6
2023-04-19T22:44:40.762443Z  INFO {net="Main"}:add_initial_peers: zebra_network::peer_set::initialize: limiting the initial peers list from 56 to 25
2023-04-19T22:44:40.762566Z  INFO {net="Main"}:add_initial_peers: zebra_network::peer_set::initialize: connecting to initial peer set initial_peer_count=25 initial_peers={5.9.7.62:8233, 161.97.155.203:8233, 51.178.66.112:8233, 65.21.137.242:8233, 3.72.134.66:8233, 51.79.57.29:8233, 161.97.247.6:8233, 65.108.253.47:8233, 51.79.230.103:8233, 46.4.65.10:8233, 78.189.206.225:8233, 20.47.97.70:8233, 135.148.55.16:8233, 23.88.71.118:8233, 65.21.40.28:8233, 47.75.194.174:8233, 5.9.74.158:8233, [2a01:4f8:b0:920a::5502]:8233, 54.145.30.137:8233, 195.201.111.115:8233, 136.243.145.143:8233, 51.79.229.21:8233, 162.250.189.42:8233, 47.242.8.170:8233, 51.77.64.51:8233}
2023-04-19T22:44:41.493325Z  INFO {net="Main"}:add_initial_peers: zebra_network::peer_set::initialize: an initial peer connection failed successes=9 errors=1 addr=46.4.65.10:8233 e=Peer offered obsolete version: Version(170002)
2023-04-19T22:44:42.400991Z  INFO {net="Main"}:add_initial_peers: zebra_network::peer_set::initialize: finished connecting to initial seed peers handshake_success_total=23 handshake_error_total=2 outbound_connections=23
2023-04-19T22:44:42.401641Z  INFO {net="Main"}: zebra_network::peer_set::initialize: sending initial request for peers active_initial_peer_count=23
2023-04-19T22:44:42.402755Z  INFO {net="Main"}: zebrad::commands::start: initializing verifiers
2023-04-19T22:44:42.403198Z  INFO {net="Main"}:init{config=Config { checkpoint_sync: true, debug_skip_parameter_preload: false } network=Mainnet debug_skip_parameter_preload=false}: zebra_consensus::primitives::groth16::params: checking and loading Zcash Sapling and Sprout parameters
2023-04-19T22:44:42.403222Z  INFO {net="Main"}:crawl_and_dial{new_peer_interval=61s}: zebra_network::peer_set::initialize: starting the peer address crawler crawl_new_peer_interval=61s outbound_connections=23
2023-04-19T22:44:42.403271Z  INFO {net="Main"}:init{config=Config { checkpoint_sync: true, debug_skip_parameter_preload: false } network=Mainnet debug_skip_parameter_preload=false}: zebra_consensus::chain: starting state checkpoint validation
2023-04-19T22:44:42.420234Z  INFO {net="Main"}:init{config=Config { checkpoint_sync: true, debug_skip_parameter_preload: false } network=Mainnet debug_skip_parameter_preload=false}: zebra_consensus::chain: initializing chain verifier tip=None max_checkpoint_height=Height(2056451)
2023-04-19T22:44:42.420307Z  INFO {net="Main"}: zebrad::commands::start: initializing syncer
2023-04-19T22:44:42.420325Z  INFO {net="Main"}: zebrad::commands::start: initializing mempool
2023-04-19T22:44:42.420381Z  INFO {net="Main"}: zebrad::commands::start: spawned initial Zebra tasks
2023-04-19T22:44:42.420411Z  INFO {net="Main"}: zebra_state::config: checking for old database versions
2023-04-19T22:44:42.420488Z  INFO {net="Main"}: zebrad::components::sync::gossip: initializing block gossip task
2023-04-19T22:44:42.420526Z  INFO {net="Main"}:sync: zebrad::components::sync: starting genesis block download and verify
2023-04-19T22:44:42.420531Z  INFO {net="Main"}: zebrad::components::mempool::queue_checker: initializing mempool queue checker task
2023-04-19T22:44:42.420554Z  INFO {net="Main"}: zebrad::components::mempool::gossip: initializing transaction gossip task
2023-04-19T22:44:42.420561Z  INFO {net="Main"}: zebrad::components::mempool::crawler: initializing mempool crawler task
2023-04-19T22:44:42.434696Z  INFO {net="Main"}:init{config=Config { checkpoint_sync: true, debug_skip_parameter_preload: false } network=Mainnet debug_skip_parameter_preload=false}: zebra_consensus::chain: state is not fully synced yet, remaining checkpoints will be verified during syncing
2023-04-19T22:44:42.434863Z  INFO {net="Main"}:init{config=Config { checkpoint_sync: true, debug_skip_parameter_preload: false } network=Mainnet debug_skip_parameter_preload=false}: zebra_consensus::chain: finished state checkpoint validation
2023-04-19T22:44:42.440136Z  INFO {net="Main"}: zebrad::components::sync::progress: initial sync is waiting to download the genesis block sync_percent=0.000 % current_height=None
2023-04-19T22:44:42.493563Z  INFO {net="Main"}: zebra_state::config: finished old database version cleanup task
2023-04-19T22:44:42.575026Z  INFO {net="Main"}:sync:checkpoint: zebra_consensus::checkpoint: verified checkpoint range block_count=1 current_range=(Unbounded, Included(Height(0)))
2023-04-19T22:44:42.683680Z  INFO {net="Main"}:sync:try_to_sync: zebrad::components::sync: starting sync, obtaining new tips state_tip=Some(Height(0))
2023-04-19T22:44:43.924467Z  INFO {net="Main"}:init{config=Config { checkpoint_sync: true, debug_skip_parameter_preload: false } network=Mainnet debug_skip_parameter_preload=false}: zebra_consensus::primitives::groth16::params: Zcash Sapling and Sprout parameters downloaded and/or verified
2023-04-19T22:44:44.763301Z  INFO {net="Main"}:sync:try_to_sync: zebrad::components::sync: extending tips tips.len=1 in_flight=499 extra_hashes=0 lookahead_limit=1000 state_tip=Some(Height(0))
2023-04-19T22:44:44.902478Z  INFO {net="Main"}:sync:try_to_sync:obtain_tips:checkpoint: zebra_consensus::checkpoint: verified checkpoint range block_count=400 current_range=(Excluded(Height(0)), Included(Height(400)))
2023-04-19T22:44:46.754603Z  INFO {net="Main"}:sync:try_to_sync:extend_tips:checkpoint: zebra_consensus::checkpoint: verified checkpoint range block_count=400 current_range=(Excluded(Height(400)), Included(Height(800)))
2023-04-19T22:44:47.023576Z  INFO {net="Main"}:sync:try_to_sync: zebrad::components::sync: extending tips tips.len=1 in_flight=869 extra_hashes=0 lookahead_limit=1000 state_tip=Some(Height(800))
2023-04-19T22:44:47.441591Z  INFO {net="Main"}: zebrad::components::sync::progress: estimated progress to chain tip sync_percent=0.039% current_height=Height(800) network_upgrade=BeforeOverwinter remaining_sync_blocks=2070157 time_since_last_state_block=0s
2023-04-19T22:44:48.908237Z  INFO {net="Main"}:sync:try_to_sync:extend_tips:checkpoint: zebra_consensus::checkpoint: verified checkpoint range block_count=400 current_range=(Excluded(Height(800)), Included(Height(1200)))